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6 gen 1941 anni - коаксиальный кабель

Descrizione:

первое коммерческое использование системы L1 в США, компанией AT&T. Между Миннеаполисом (Миннесота) и Стивенс Пойнт (Висконсин) запущен ТВ-канал и 480 телефонных номеров.

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ByСашка
3 set 2018

Data:

6 gen 1941 anni
Adesso
~ 83 years ago
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